Study On The Computer-based Colors Merging And Outline Drawing In Colorful Images

The Research is funded by the national natural science fund project titled by Information Extraction of SPOT Satellite Remote Sensing Image and Dynamic Monitoring of Land Use and Land Cover(sanction number:40371053).Method of color image classify by the color of the pixels and the method of Vector are studied.At present, the application of Remote Sensing Technology is comprised of two means, one is Computer Classification of Satellite images based on the multi-spectral bands features of the image, the other is the manual interpreter of multicolor images synthesized by Remote Sensing images. This method is applied broadly today. In order to decrease the workload of the method of manual interpreter and to reduce the imprecise problem resulted from the subjective muff in the process of manual interpreter. In this paper, the software which can replace the manual interpreter method of Remote Sensing images developed, in the multicolor images composed by Remote Sensing images especially the multicolor images transformed by LBV Transformation Method which is developed by Zhiyuan Zeng professor, one color is corresponding to the special ground features. But Minority ground features are extracted in the application of Remote Sensing .correspondingly the importance colors are extracted, and the other colors are merged into the importance colors.In this paper, expect for the basic theory of digital image process, the algorithm of Octree Quantization is deeply researched. So the problem that the color images processed by Octree Quantization are not suitable for geographic application is discovered, because the Octree Quantization the algorithm of Octree Quantization uses the average color of all the pixels in one class as the color of the class, so when the number of the class is small, the hue of the color images after processed will departure from the original images. In order to get suitable images, the improved algorithm of Octree Quantization is developed, which uses the majority color of one class as the color of the class. Additionally the method of vector is also studied, finally one software is developed based on the forward theory.